2d + 160 = -18
What is the answer

d = -89

Step-by-step explanation:

2d + 160 = -18

Isolate the variable, d. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 160 from both sides:

2d + 160 (-160) = -18 (-160)

2d = -18 - 160

2d = -178

Divide 2 from both sides:

(2d)/2 = (-178)/2

d = -178/2

d = -89

d = -89 is your answer.

~

5c + 42 and 9c + 2

Step-by-step explanation:

if a number has a variable next to it then it cannot be combined with a number that is alone.. Therefore there is no exact answer unless the variable has a number that you can replace it with. So basically numbers with the same number can be added together and numbers alone can be added together. If you do the math right then you should get the answer.